Comand retro fit howto ?

Hi all,
Well I have taken the plunge and bought a COMAND NTG 2.5 for my car.
I don't suppose any of you have instructions on the best location for the GPS antenna and Bluetooth Ariel do you?

I am reasonably confident about the removal of my stock Audio 20 CD Radio, thanks to some very good youtube videos..

As a matter of interest can anyone tell me if this version of COMAND displays song title / artist info?

Any other relevant info you think I need to know will be gratefully recieved.
Thanks